Major complications and risk factors associated with surgical correction of congenital medial patellar luxation in 124 dogs

Cashmore, R. G., Havlicek, N., Perkins, N. R., James, D. R., Fearnside, S. M., Marchevsky, A. M. and Black, A. P. (2014) Major complications and risk factors associated with surgical correction of congenital medial patellar luxation in 124 dogs. Veterinary Comparative Orthopedics and Traumatology, 27 4: 263-270. doi:10.3415/VCOT-13-08-010


Author Cashmore, R. G.
Havlicek, N.
Perkins, N. R.
James, D. R.
Fearnside, S. M.
Marchevsky, A. M.
Black, A. P.
Title Major complications and risk factors associated with surgical correction of congenital medial patellar luxation in 124 dogs
Journal name Veterinary Comparative Orthopedics and Traumatology   Check publisher's open access policy
ISSN 0932-0814
Publication date 2014-05-07
Sub-type Article (original research)
DOI 10.3415/VCOT-13-08-010
Open Access Status Not Open Access
Volume 27
Issue 4
Start page 263
End page 270
Total pages 8
Place of publication Stuttgart, Germany
Publisher Schattauer
Language eng
Abstract Dogs treated for congenital medial patellar luxation were reviewed for the purpose of determining the incidence of postoperative major complications requiring surgical revision and the risk factors for their occurrence. Major complications occurred in 18.5% of the patellar luxation stabilization procedures with implant associated complications being the most frequent, patellar reluxation the second, and tibial tuberosity avulsion the third most common major complication. Other complications included patellar ligament rupture and trochlear wedge displacement. When recession trochleoplasty was performed in addition to tibial tuberosity transposition, a 5.1-fold reduction in the rate of patellar reluxation was observed. Release of the cranial belly of the sartorius muscle further reduced the incidence of patellar reluxation, while patella alta (pre- or postoperative) and patellar luxation grade were not found to influence the rate of reluxation. Tibial tuberosity avulsion was 11.1-times more likely when using a single Kirschner wire to stabilize a transposition, compared with two Kirschner wires. Independent to the number of Kirschner wires used, the more caudodistally the Kirschner wires were directed, the higher the risk for tibial tuberosity avulsion. Tension bands were used in 24.4% of the transpositions with no tuberosity avulsion occurring in stifles stabilized with a tension band. Overall, grade 1 luxations had a significantly lower incidence of major complications than other grades, while body weight, age, sex, and bilateral patellar stabilization were not associated with risk of major complication development.
Keyword Patellar luxation
Trochleoplasty
Avulsion
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Veterinary Science Publications
 
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Created: Wed, 30 Mar 2016, 17:34:15 EST by Nigel Perkins on behalf of School of Veterinary Science